Bosch BPT-S 3 Manuel De Service page 173

English
WARNING
WARNING
Bosch Power Tec GmbH
Risk of injury due to incorrect AC connection (1)
Incorrect AC connections can cause overheating and
fire, which can lead to serious injury or death.
Only allow an authorised electrician to carry out AC

connections
Correctly connect and check the protective earth

(PE) and measure the protective earth resistance
 Connect an external circuit breaker
Install the circuit breaker (automatic circuit

breaker) according to the maximum permitted fuse
rating of the string inverter.
 Only connect a suitable circuit breaker
Only connect the device to specified grids: see data

on the type plate
Risk of injury due to incorrect AC connection (2)
Incorrect AC connections can cause overheating and
fire, which can lead to serious injury or death.
 Only use AC cables with sufficient current-carrying
capacity. Observe specified cable cross-section.
Correctly assemble the original AC plug: do not

reverse the polarity, insert the strands far enough
and use a suitable tool to tighten the screw
terminals.
If there is no guarantee that the device will be

switched off in the event of a fault (no low-
resistance PE connection for TT grids), suitable
safety measures must be put in place (e.g. install
earth leakage circuit breaker).
Bosch BPT-S 3 / 3.68 / 4 / 4.6 | Operating manual
Installation | 55